president obama is demanding that moammar gadhafi step down immediately. this came after a phone call with the german chancellor angela merkel in which both leaders, we're told, expressed deep concerns over what they called the brutalization of the libyan protesters. the white house issued a statement in which president obama said quote, when a leader's only means of staying in power is to use mass violence against his people, he has lost the legitimacy to rule and needs to do what is right for his country by leaving now. the two leaders also urged the international community to take strong measures to hold libya's government accountable, but they didn't say what the measures should be. >> john hendren in front of the white house tonight. thank you. >>> in the meantime from egypt this evening where the revolution toppled president mubarak, an alarming scene. the military police using force against protesters, just before dawn today, beating them and making arrests there. protesters feel the military's patience is wearing out, but the council has separated